JP4132345B2 - Vertical pipe line - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical pipe line constituting a natural flow type sewer.
[0002]
[Prior art]
Conventionally, in order to prevent the inside of the manhole from being damaged by the sewage flowing down naturally in the manhole, for example, as disclosed in JP-A-8-41915, the sewage shown in FIG. A method of arranging a vertical pipe (drop shaft) is being implemented.
[0003]
This vertical pipe for sewage has a straight pipe main body part a having a constant inner diameter, and a spiral guide path b for guiding the sewage spirally so that the sewage does not flow in a straight line inside the pipe main body part a. The flow rate of the sewage is attenuated as the sewage flows down spirally along the spiral guide path b. The sewage in the attenuated state flows out into the manhole d from the discharge port c provided at the lower end of the pipe main body part a. Accordingly, the sewage flowing into the manhole d is not likely to collide strongly with the bottom of the manhole d and the bottom of the manhole d is prevented from being damaged.
[0004]
This vertical pipe for sewage is connected to a drain pipe e so as to introduce sewage from a sewer piped at a high level to the upper end of the pipe main part a, and sewage is piped to a low level from the lower end of the pipe main part a. A vertical pipe line for sewage is formed and used so as to flow into the sewer.
[0005]
In such a conventional sewage vertical pipe line, when the sewage vertical pipe is clogged, the sewage overflows and the environment in the manhole d is deteriorated, or the members of the sewage vertical pipe and the sewage vertical pipe When the whole requires replacement due to its life, there is a problem that the replacement work becomes difficult because the sewage flows continuously in the sewage vertical pipe line.
[0006]
[Problems to be solved by the invention]
The present invention eliminates the above-mentioned conventional problems and repairs when troubles such as clogging occur in the vertical pipe, or replaces the vertical pipe members and the whole vertical pipe when the vertical pipe becomes obsolete. The purpose of the present invention is to provide a vertical pipe line that can be easily performed without stopping sewage flowing continuously.
[0007]
[Means for Solving the Problems]
In the invention according to claim 1 of the present application (present invention 1), an inflow pipe of sewage is connected to an upper end portion of a vertical pipe, and a bypass pipe for flowing down sewage in an emergency is connected to the inflow pipe. The sewage inflow port is a vertical pipe line opened at a position higher than the normal water level in the inflow pipe .
[0008]
In the present invention, as the vertical pipe, one having a function of attenuating the flow rate of sewage flowing down inside is preferably used, for example, a vertical pipe with a spiral guide path provided with a spiral guide path in the pipe body part, A vertical pipe or the like in which a shielding plate for shielding a part of a flow path in the pipe is arranged in a zigzag shape in the pipe main body is used.
[0009]
In a vertical pipe with a spiral guideway provided with a spiral guideway in the pipe body part, metals, plastics, concrete, composite pipes of these, etc. are used as the material forming the pipe body part and the spiral guideway. The
Examples of plastics include thermoplastic resins such as polyvinyl chloride, polyethylene, polypropylene, and methacrylic resins. Thermosetting resins include unsaturated polyester resins, vinyl ester resins, and epoxy resins. The resin can be used as a resin reinforced with inorganic fibers such as glass fibers, carbon fibers, organic fibers such as aramid fibers and vinylon fibers.
Examples of the composite pipe include a fiber reinforced resin mortar pipe.
[0010]
The spiral guide path does not necessarily need to be provided over the entire length in the tube main body, and may not be provided particularly in the intermediate portion of the tube main body.
The height of each path of the spiral guide path is preferably about 1/20 to 5/12 of the diameter of the pipe body. Although the thickness of the spiral guide path varies depending on the diameter, it is usually preferably about 1/20 to 15/100 of the inner diameter of the tube main body. The spiral pitch of the spiral guide path is preferably about 1 to 10.
[0011]
In vertical pipes that have a zigzag shielding plate that shields part of the flow path in the pipe inside the pipe body, the pipe body and shielding plate are made of metal, plastic, concrete, etc. Is done. As the plastic, those similar to the above are used.
[0012]
In the present invention, the inflow pipe may be a culvert or an open pipe. The connection position of the bypass pipe to the inflow pipe may be anywhere as long as it does not affect the separation of the vertical pipe.
As materials for the inflow pipe and bypass, plastics, concrete, composite pipes, etc., as well as metals similar to the above, are used.
[0013]
[Action]
The vertical pipe line of the present invention 1 is clogged in the vertical pipe because the inflow pipe of sewage is connected to the upper end of the vertical pipe, and the bypass pipe for flowing down the sewage in an emergency is connected to the inflow pipe. When an abnormality occurs, or when it is necessary to replace the worn spiral guide in the vertical pipe or to replace the entire old vertical pipe, the sewage is allowed to flow downstream from the bypass pipe. Since the repair can be performed, the repair can be easily performed without stopping the sewage flowing continuously.
[0014]
In addition , since the sewage inlet to the bypass pipe is opened at a position higher than the normal water level in the inflow pipe, the sewage is not allowed to flow through the bypass pipe at normal times, and the sewage is bypassed only at an abnormal time. Therefore, it is possible to carry out repairs such as clogging in the vertical pipe during that time.
[0015]
In addition , since the sewage from the inlet of the bypass pipe can be shut off during normal use, the sewage is allowed to flow downstream through the bypass pipe only in an abnormal state without flowing the sewage into the bypass pipe during normal use. In the meantime, repair such as clogging in the vertical pipe can be performed.
[0016]
Further , since the flow path downstream of the inlet of the inflow pipe can be blocked, the shielding plate prevents the sewage from flowing into the vertical pipe, and the sewage passes through the bypass pipe. Easily carry out repair work such as removing clogging in the vertical pipe, replacing worn spiral guides in the vertical pipe, or replacing the entire old vertical pipe in the meantime. Can do.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing an example of a vertical pipe line of the present invention.
As shown in FIG. 1, the vertical tube 11 includes a straight tube main body 111 made of fiber reinforced resin mortar, and a first made of fiber reinforced resin spirally provided in the upper portion of the tube main body 111. The spiral guide path 112, the second spiral guide path 113 made of fiber reinforced resin spirally provided in the lower part of the tube main body 111, and the fibers provided in the axial center of the first spiral guide path 112 It consists of a reinforced resin air core tube 114. The axial center of the second spiral guide path 113 is hollow over the entire length. A spiral guide path is not provided in an intermediate portion in the tube main body 111.
[0018]
A resin inflow pipe 13 for inflow of sewage disposed so as to penetrate the wall of the manhole 12 is connected to the upper end of the pipe main body 111 of the vertical pipe 11, and the lower end of the pipe main body 1111. An outflow pipe 14 made of fiber reinforced resin mortar for flowing down sewage is connected to the pipe. The vertical pipe 11 and the inflow pipe 13 and the outflow pipe 14 are connected so that the vertical pipe 11 can be detached.
[0019]
The inflow pipe 13 is connected to a bypass pipe 15 made of a vinyl chloride resin for flowing down sewage in an emergency. The bypass pipe 15 has an upper end connected to the inflow pipe 13 and a lower end connected to the outflow pipe 14 so that the inflow port 151 opens at an upper position higher than the normal water level in the inflow pipe 13. .
[0020]
A slit portion 152 is provided on the upper wall of the inflow pipe 13 at a position downstream of the inflow port 151, and a shielding plate 153 is arranged in the slit portion 152 so as to move up and down. The flow path on the downstream side of the inlet 151 in the inflow pipe 13 can be blocked.
[0021]
During normal operation, the shielding plate 153 is pulled upward so that sewage flows down in the inflow pipe 13 at a normal water level and flows into the vertical pipe 11. Then, the flow rate of the sewage that has flowed in is decreased along the first spiral guide path 112 and the second spiral guide path 113 while the speed is attenuated, and reaches the lower end of the vertical pipe 11 and flows out. It flows through the pipe 14 to the outside.
[0022]
When an abnormality such as clogging occurs in the vertical pipe 11, the sewage does not flow to the outflow pipe 14 through the bypass pipe 15 and overflow, so that repair work such as clogging in the vertical pipe 11 is performed as it is. It can be carried out.
[0023]
If the shielding plate 153 is pushed down to prevent the sewage from flowing into the vertical pipe 11, the sewage can be prevented from flowing into the vertical pipe 11, so that the vertical pipe can be more easily Repair work such as clogging in 11 can be performed.
[0024]
In addition, when it is necessary to replace the worn first spiral guide path 112 and the second spiral guide path 113 in the vertical pipe 11 or when it is necessary to replace the old vertical pipe 11 completely, Similarly, the shield plate 153 is pushed down to prevent the sewage from flowing into the vertical pipe 11, and replaced with a new first spiral guide path 112 or a second spiral guide path 113, or aged. It is possible to easily perform repair work such as separating the vertical pipe 11 into the inflow pipe 13 and the outflow pipe 14 and connecting the new vertical pipe 11 there.
When these repair operations are completed, the normal operation state is restored even if the shielding plate 153 is pulled upward.
[0025]
FIG. 2 is a cross-sectional view showing another example of the vertical pipe line of the present invention.
In the vertical pipe line of this example, a concrete inflow pipe 23 is connected to the upper end portion of the pipe main body 211 of the vertical pipe 21 made of fiber reinforced resin mortar.
The inflow pipe 23 is connected to a bypass pipe 25 made of a vinyl chloride resin for flowing sewage in an emergency at the upper end so that the inflow port 251 opens at a lower position lower than the normal water level in the inflow pipe. A lower end portion is connected to the outflow pipe 24.
An openable / closable shielding plate 252 is disposed at the upper end of the bypass pipe 25 so that the internal flow path can be blocked by the shielding plate 252 in a normal state.
[0026]
When an abnormality such as clogging occurs in the vertical pipe 21, the shielding plate 252 is opened, and the sewage flows through the bypass pipe 25 to the outflow pipe 24. Do work.
In addition, when it is necessary to replace the worn first spiral guide path 212 and second spiral guide path 213 in the vertical pipe 21, the repair work can be performed in the same manner as described above. Furthermore, even when it is necessary to replace the aging vertical pipe 21 completely, the vertical pipe 21 can be repaired by separating it from the inflow pipe 23 and the outflow pipe 24.
In this case, similarly to the above, a shielding plate (not shown) may be provided at a position downstream of the inflow pipe 251 in the inflow pipe 23 to prevent sewage from flowing into the vertical pipe 21.
[0027]
【The invention's effect】
Since the vertical pipe line of the present invention is as described above, it is repaired when trouble such as clogging occurs in the vertical pipe, or when the vertical pipe is aged, all the members of the vertical pipe and the vertical pipe Can be easily performed without stopping the sewage flowing continuously.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of a vertical pipe line of the present invention.
FIG. 2 is a cross-sectional view showing another example of the vertical pipe line of the present invention.
FIG. 3 is a cross-sectional view showing an example of a conventional vertical pipe.
[Explanation of symbols]
11, 21 Longitudinal pipe 13, 23 Inflow pipe 14, 24 Outflow pipe 15, 25 Bypass pipe 111, 211 Pipe main body 112, 212 First spiral guide path 113, 213 Second spiral guide path 151 Inlet 153, 252 Shield

Claims (1)

A sewage inflow pipe is connected to the upper end of the vertical pipe, and a bypass pipe is connected to the inflow pipe for flowing sewage in an emergency ,
A vertical pipe line , wherein an inlet of sewage to the bypass pipe is opened at a position higher than a normal water level in the inflow pipe .

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